Application of Insert Chromium Plating Technology for Large Drawing Die

Kou Zhaoyang, Wan Hongwu, Zhang Wenbo, Feng Jihe, Li Xin’an （FAW Jiefang Automobile Company Limited, Changchun 130011） Abstract：through the application of insert chromium plating technology on a large drawing die of a truck, the production problems such as galling and cracking of parts are solved. The application of this technology not only improves the quality of parts, but also improves the hardness, smoothness, and wear resistance of mold materials, greatly extending the service life of the mold. In the whole implementation process, through accumulating relevant experience, a very small investment in molds can be achieved, and the application effect is also good. This technology provides an effective solution for the maintenance of stamping dies, especially large drawing dies.

Key words: Drawing die, Insert chrome plating, Service life, Maintenance